VCT38XXA Datasheet, PDF (89/172 Pages) Micronas – Video/Controller/Teletext IC Family

ADVANCE INFORMATION
VCT 38xxA
PH2
RW
ADB
extern
extern
DB
OE
WE
DB
OE
WE
Fig. 5–2: Internal/external memory access
intern
intern
internal signal
internal signal
Controlword
DISEXT= 1
Controlword
DISEXT= 0
5.5. Standby Registers
The Standby registers allow the user to switch on/off
power or clock supply of single modules. With these
flags it is possible to greatly influence power consump-
tion and its related electromagnetic interference.
For details about enabling and disabling procedures
and the standby state refer to the specific module
descriptions.
The minimum IC current consumption is obtained with
all standby registers set to 00h.
4: 1F08
5: SR0
6:Standby Register 0
bit
7
6
5
4
3
2
1
0
r/w
PWM1 PWM0
TRAM CCC TVPWM
reset
0
0
0
0
0
0
0
0
PWM1
r/w1:
r/w0:
Pulse Width Modulator 1
Module active.
Module off.
PWM0
r/w1:
r/w0:
Pulse Width Modulator 0
Module active.
Module off.
TRAM
r/w1:
r/w0:
Text RAM
Module active
Module off
CCC
r/w1:
r/w0:
TVPWM
r/w1:
r/w0:
Capture Compare Counter
Module active.
Module off.
Tuning Voltage Pulse Width Modulator
Module active.
Module off.
7: 1F09
bit
7
r/w
reset
0
8: SR1
6
5
CPUFST
1
0
9: Standby Register 1
4
3
2
1
0
ADC
TIM1 TIM0
0
0
0
0
0
CPUFST
r/w1:
r/w0:
ADC
r/w1:
r/w0:
CPU Fast Mode
Fast mode: f_CPU = f_XTAL / 2
Slow mode: f_CPU = f_XTAL / 512
ADC Module
Module active.
Module off.
TIM1
r/w1:
r/w0:
Timer 1
Module active.
Module off.
TIM0
r/w1:
r/w0:
Timer 0
Module active.
Module off.
Micronas
89